The All-Species Living Tree' Project is a collaboration between various academic groups/institutes, such as
ARB, SILVA rRNA database project, and
LPSN
List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, following the taxonomy requirements and rulings of the International Code of Nomenclature ...
, with the aim of assembling a database of
16S rRNA sequences of all validly published species of ''
Bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were amon ...
'' and ''
Archaea
Archaea ( ; singular archaeon ) is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes. Archaea were initially classified as bacteria, receiving the name archaebacteria (in the Archaeb ...
''.
At one stage,
23S sequences were also collected,
but this has since stopped.
Currently there are over 10,950 species in the aligned dataset and several more are being added either as new species are discovered or species that are not represented in the database are sequenced. Initially the latter group consisted of 7% of species.
Similar (and more recent) projects include the Genomic Encyclopedia of Bacteria and Archaea (GEBA), which focused on whole genome sequencing of bacteria and archaea.
Tree
The tree was created by
maximum likelihood analysis without bootstrap: consequently accuracy is traded off for size and many phylum level clades are not correctly resolved (such as the Firmicutes). (Eukaryotes not present in analysis). This phylogeny is a summary of the 16S rRNA based LTP_01_2022 and contains all type species with validly published names up to January 2022.
See also
*
Branching order of bacterial phyla (Woese, 1987)
*
Branching order of bacterial phyla (Gupta, 2001)
*
Branching order of bacterial phyla (Cavalier-Smith, 2002)
*
Branching order of bacterial phyla (Rappe and Giovanoni, 2003)
*
Branching order of bacterial phyla (Battistuzzi et al.,2004)
*
Branching order of bacterial phyla (Ciccarelli et al., 2006)
*
Branching order of bacterial phyla (Genome Taxonomy Database, 2018)
*
Bacterial phyla
Bacterial phyla constitute the major lineages of the domain ''Bacteria''. While the exact definition of a bacterial phylum is debated, a popular definition is that a bacterial phylum is a monophyletic lineage of bacteria whose 16S rRNA genes ...
*
List of Archaea genera
*
List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ...
*
List of bacterial orders
This article lists the orders of the Bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI)
and the phylogeny is based on 1 ...
*
LPSN
List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, following the taxonomy requirements and rulings of the International Code of Nomenclature ...
, list of accepted bacterial and archaeal names
References
External links
* http://www.arb-silva.de/projects/living-tree/
{{DEFAULTSORT:All-Species Living Tree Project
Bacteria
Bacteriology
Microbiology
Taxonomy (biology)
Systems of bacterial taxonomy